Trainz

Trainz is a train simulator. It's perfect for a worldbuilder who likes running trains at 3 AM.

Routes

Default

City and Country USA - Typical Americana. Comes with a bunch of stations, a branch line to the mountains, and even a steel mill. Typical motive power includes F7s, SD40-2s, and shunters from ATSF, B&O, NYC, Southern, and CB&Q. Introduced very early in the game's chronology.

British Midlands - Typical 1970s British Rail scene. Typical motive power includes HSTs, Class 55s, and Class 37s. Introduced very early in the game's chronology.

Kickstarter County - I assume this was named in honour of those who donated on Kickstarter. There's a circular mainline with a branch up a mountain. It could even form its own little economy.

Outback Australia - Made with two baseboards, this route has equipment from New South Wales, Queensland, and South Australia (I think). Introduced very early in the game's chronology.

Hypothetical

Technically anything. But like, Trainz take up soooo much space these days, not to mention all the DLC.